The Suzuki LT250R, produced from 1988 to 1992, represents the second generation of this high-performance sport ATV. Engineered for aggressive off-road riding and competitive use, it is renowned for its agile handling, stable chassis, and the strong mid-range and top-end power delivered by its 249cc, 2-stroke, liquid-cooled engine. This model builds upon Suzuki's heritage of creating lightweight, potent machines, offering enthusiasts and racers a capable platform for demanding terrain and dynamic performance. This comprehensive service repair manual provides detailed guidance for maintaining and repairing the Suzuki LT250R across its covered model years. It offers complete coverage of essential systems, including engine maintenance, transmission service, suspension and braking system overhauls, and electrical system diagnostics. The manual includes a troubleshooting guide, wiring diagrams, torque specifications, and descriptions of special tools, empowering owners and technicians with the knowledge needed for effective upkeep and repair. 🏷️ Basic Information Identification Make: Suzuki Model: LT250R Generation: 2nd Generation (RG) Model Years Covered: 1988, 1989, 1990, 1991, 1992 Product Name: Suzuki LT250R 1988-1992 Service Repair Manual PDF Download 👋 Introduction Market Position Segment: High-performance sport ATV Target Audience: Enthusiasts, racers, and DIY mechanics seeking detailed repair information Competitive Analysis Key Competitors: Yamaha Warrior 350, Honda TRX250R (previous generation), Kawasaki Tecate-4 Key Features Performance Focus: Engineered for aggressive off-road riding and competitive use Handling Capabilities: Renowned for its agile handling and stable chassis Power Delivery: Strong mid-range and top-end power from its 2-stroke engine 📋 Manual Details Coverage Areas Engine Maintenance: Complete Transmission Service: Complete Suspension System Repair: Complete Braking System Overhaul: Complete Electrical System Diagnostics: Complete Chassis And Bodywork Repair: Complete Troubleshooting Guide: Comprehensive Wiring Diagrams: Included Torque Specifications: All Special Tools: Listed and described Page Count Estimated Pages: 300+ Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: 249cc, 2-stroke, liquid-cooled, reed valve, single-cylinder Carburetion: Mikuni VM32SS Ignition: CDI Transmission: 6-speed manual Clutch: Wet multi-plate Cooling System: Liquid cooling, radiator, fan Fuel System: Pre-mix (100:1 or 50:1 ratio depending on application) Suspension Front: Independent double A-arm with adjustable shock absorbers (Showa or similar) Suspension Rear: Swingarm with single adjustable shock absorber (Pro-Link system) Brakes Front: Dual hydraulic disc brakes Brakes Rear: Single hydraulic disc brake Electrical System: 12V DC system, lighting, battery charging Procedures Included Engine Rebuild: Complete disassembly, inspection, and reassembly Carburetor Tuning: Adjustment, cleaning, and rebuilding Suspension Setup: Preload, compression, and rebound adjustments Brake Bleeding: Hydraulic system maintenance Electrical Troubleshooting: Fault finding for ignition, lighting, and charging circuits Chain Adjustment: Proper tensioning and lubrication Wheel Bearing Service: Replacement and lubrication Cooling System Maintenance: Flushing, coolant replacement, thermostat service Spark Plug Replacement: Selection and gapping Air Filter Cleaning: Service and replacement Technical Depth Depth: Comprehensive: From basic maintenance and fluid changes to complete engine and transmission overhauls, including detailed diagnostics and troubleshooting for all major systems. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text Printability: Printable Print Quality Image Resolution: High resolution for clear diagrams and text Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, liquid-cooled, single-cylinder Displacement: 249 cc (15.2 cu. in.) Bore X Stroke: 72.0 mm x 61.0 mm (2.83 in. x 2.40 in.) Compression Ratio: 7.0:1 Valvetrain: Reed valve induction Performance Horsepower Est: Approximately 30-35 HP (varies by specific model year and tuning) Torque Est: Approximately 20-24 lb-ft (varies) Fuel System Carburetor Model: Mikuni VM32SS Fuel Type: Unleaded gasoline with 2-stroke oil pre-mix Recommended Oil Mix: 50:1 or 100:1 (refer to manual for specific recommendations and conditions) 🔧 Transmission Standard Transmission Type: 6-speed manual Clutch Type: Wet multi-plate Final Drive: Chain drive Features Gear Ratios: Detailed in manual 📐 Dimensions Exterior Length: Approx. 1970 mm (77.6 in.) Width: Approx. 1170 mm (46.1 in.) Height: Approx. 1120 mm (44.1 in.) Wheelbase: Approx. 1270 mm (50.0 in.) Ground Clearance: Approx. 250 mm (9.8 in.) Weights Dry Weight: Approx. 183 kg (403 lbs.) Fuel Capacity: Approx. 13.0 L (3.4 US gal) 🛡️ Safety Features Ratings Safety Standard: ATV safety standards of the era Active Features Braking System: Powerful hydraulic disc brakes front and rear Suspension: Long-travel, adjustable suspension for stability and control Passive Features Chassis Design: Tuned for rider control and stability Tire Design: Aggressive tread pattern for off-road traction 💡 Technology Features Infotainment Infotainment System: N/A (Basic sport ATV design) Driver Assistance Assistance Features: N/A (Rider-controlled operation) Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Engine: Refer to manual for specific break-in and regular service intervals Air Filter Cleaning: After every few rides, depending on conditions Chain Lubrication: Regularly, especially after riding in wet conditions Spark Plug Inspection: Periodically, check for fouling and proper gap Brake Fluid Flush: Annually or as needed based on condition Coolant Flush: Every 1-2 years Fluid Specifications Engine Oil: 2-stroke oil mixed...